CN105366575B - Winch is directly driven with bearingless motors - Google Patents
Winch is directly driven with bearingless motors Download PDFInfo
- Publication number
- CN105366575B CN105366575B CN201510470717.7A CN201510470717A CN105366575B CN 105366575 B CN105366575 B CN 105366575B CN 201510470717 A CN201510470717 A CN 201510470717A CN 105366575 B CN105366575 B CN 105366575B
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- CN
- China
- Prior art keywords
- axis
- electric motor
- motor
- rotor
- motor mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/82—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes for slewing and hoisting by means of derricks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
- F16M1/04—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for rotary engines or similar machines
Abstract
A kind of electric motor for directly driving winch can be supported by one or more motor mountings.The motor mounting may include the adjusting component suitable for increasing or decreasing the length of motor mounting.Motor mounting may include the damper assembly for the damped motion being adapted to allow between electric motor and surface.The length and damped coefficient of motor mounting can be adjusted into alignment electric motor and roller or axis, to reduce vibration.Electric motor can be removed by, for example, splined shaft, flange coupling spindle or the rotor that can selectively remove inside motor from winch.
Description
Technical field
Present invention relates in general to the installations of electric motor, and more particularly to for winch (drawworks), mining
The motor mounting of crane (hoist), hoist engine (winch) or slush pump.
Background technique
In the equipment by electrical motor driven, in the misalignment or bearing clearance between rotary part and electric motor
The stacking of deviation can cause undesirable as a result, including vibration, noise or the damage to motor or equipment.In addition, passing through drive
The moment of reaction caused by moving axis can lead to undesirable vibration or unexpected internal interference in motor.For example, if
Stator undergoes undesirable whirling vibration, then electric motor " can pause and turn (cog) ", leads to excessive noise and jerking movement.
Citing, winch are a common oil field equipments, which is used for oil and natural gas drilling well and production.It twists
Vehicle is positioned to promote and reduce the movable pulley in drilling equipment.Movable pulley is hanged by hoisting rope from the boring tower of drilling equipment
It hangs, and is normally used for for drill string and shell being lifted to outside wellbore and be reduced in wellbore, wherein the hoisting rope is recognized as
It is jewel hole wirerope, drilling line or " drilling wirerope ".Hoisting rope is connected to the roller rotated by rotor.Normally, until
A few motor is mounted on such as surface of slideway (skid), platform, or is mounted directly on rig floor.The rotor of motor and
Any misalignment between the axis of roller or any bearing clearance can lead to undesirable vibration or the damage to winch.In order to
Any misalignment is coped with, motor can couple by flexible connector with roller.However, flexible connector may be unlike solid shafting
It is equally firm, and it is possibly used for the maximum power that limitation can be used by winch.In addition, when compared with rigid attachment device,
Flexible connector will increase the length and complexity of winch.Motor, which is fixedly secured to surface, to be aggravated between rotor and axis
Any misalignment, and allow stator undesirable whirling vibration.Any fortune as caused by misalignment or bearing clearance
Dynamic to be suppressed and being fixedly installed to surface, this can lead to stress in axis, bearing and surface mounting, which can
To cause early fatigue and possibly cause to fail.
Summary of the invention
The present invention provides one kind to directly drive crane.The crane may include electric motor.The crane may be used also
To include the first motor mounting.First motor mounting may be adapted to electric motor being connected to surface.First motor mounting can be with
Damper assembly including the damped motion being adapted to allow between electric motor and surface.First motor mounting may include being suitable for prolonging
It stretches or the adjusting component for the first motor mounting that bounces back.Crane can also include the axis for extending through electric motor, which is suitable for
It is rotated by electric motor.Crane can also include the roller for being connected to axis, which is suitable for being rotated with axis by electric motor
And it is rotated by axis.The present invention also provides a kind of methods.This method may include providing one kind to directly drive crane.This is directly
Driving crane may include electric motor.The crane can also include the first motor mounting.First motor mounting can fit
In electric motor is connected to surface.First motor mounting may include that the damping being adapted to allow between electric motor and surface is transported
Dynamic damper assembly.First motor mounting may include the adjusting component suitable for the first motor mounting that extends or bounce back.Crane
It can also include the axis for extending through electric motor, which is suitable for being rotated by electric motor.Crane can also include being connected to
The roller of axis, the roller are suitable for being rotated as axis is rotated by electric motor by axis.This method may be responsive to following
One or more adjust damper assembly and adjust one or more of component: the radial displacement of axis;Electric motor and axis,
Misalignment between roller or rotor;The vibration observed;Pause and turns (cogging);Bearing tolerances.
The present invention also provides a kind of methods for assembling and directly driving crane.This method may include providing a kind of rolling
Cylinder, which includes axis, which is connected to surface.This method can also include providing the stator for corresponding to electric motor, should
Stator is connected to the shell of electric motor.This method can also include providing the rotor for corresponding to electric motor.This method may be used also
To include that rotor is connected to axis.This method can also include that rotor fixed position cooperates at stator.This method can also include
Shell is connected to surface by the first motor mounting.First motor mounting may include being adapted to allow for electric motor shell and table
The damper assembly of damped motion between face.First motor mounting may include the tune suitable for the first motor mounting that extends or bounce back
Save component.This method can also include adjusting component so that stator is aligned with axis.
The present invention also provides a kind of direct drive motor components.The direct drive motor component may include electronic horse
It reaches.Electric motor may include shell, the stator and rotor for being connected to shell.The direct drive motor component can be further
Axis including extending through electric motor.Axis can be connected to rotor and be suitable for being rotated by electric motor.This directly drives horse
Up to the bracket that component can also include suitable for being rotationally coupled axis and surface.Bracket may include the axis between axis and bracket
It holds.The shell of motor can be fixedly secured to bracket.
Detailed description of the invention
When studying carefully together with attached drawing, the present invention can be optimally understood from the following detailed description.It should be emphasized that according to
Standard convention in industry, various features are not drawn on scale.In fact, for clarity of discussion, the ruler of various features
It is very little arbitrarily to be increased or decreased.
Fig. 1 illustrates the side views with the consistent winch of the embodiment of the present invention.
Fig. 2 illustrates the cross-sectional view of the winch of Fig. 1.
Fig. 3 illustrates the end-view of the winch of Fig. 1.
Fig. 4 illustrates the perspective view with the consistent motor mounting of the embodiment of the present invention.
Fig. 5 illustrates the partial sectional view with the consistent winch of the embodiment of the present invention.
Fig. 6 illustrates the partial sectional view with the consistent winch of the embodiment of the present invention.
Fig. 7 illustrates the partial sectional view with the consistent winch of the embodiment of the present invention.
Fig. 8 illustrates the partial sectional view with the consistent winch of the embodiment of the present invention.
Specific embodiment
It should be understood that disclosure below provides many different embodiment or examples, for executing various embodiments
Different characteristic.The particular example of component and device is described below to simplify the present invention.Certainly, these be merely exemplary without
It is contemplated to restrictive.In addition, the present invention can repeat appended drawing reference and/or letter in various examples.The repetition be for
It is simple and for the sake of removing, and itself do not indicate the relationship between the various embodiments discussed and/or construction.
Fig. 1,2 illustrate and the consistent winch 101 of the embodiment of the present invention.Winch 101 positions on the surface 10.Some
In embodiment, surface 10 be can be, such as and is not limited to, the deck of drilling equipment used in winch 101.Other real
It applies in example, surface 10 can be the slideway that chassis, rack or winch 101 are positioned on.
Winch 101 may include roller 103.Roller 103 may be adapted to winding hoisting rope 105 on it also,
As roller 103 rotates, hoisting rope 105 come heave in or is unclamped according to the direction of rotation of roller 103.
In some embodiments, winch 101 may include one or more electric motors.In some embodiments, as schemed
1, shown in 2, single motor motor 107 can be connected to roller 103.In some embodiments, winch 101 may include being located in
One or more electric motors on each end of roller 103.In some embodiments, electric motor 107 may include horse
Up to shell 109, stator 111 and rotor 113.Understanding such as in this field to the benefit of the disclosure, rotor 113 and stator 111 can
To be located in motor shell 109.
In some embodiments, as shown in Fig. 2, rotor 113 can be positioned in stator 111, so-called inner rotator electricity
Dynamic motor.Stator 111 can be fixed to the inner wall of motor shell 109.Stator 111 can surround the cylindrical shape of motor shell 109
Internal stretch.Stator 111 may include the inner surface for surrounding stator 111 and the coil positioned.The coil of stator 111 is positioned
At, when AC electricity is provided to the coil, inside it incude continuous rotation electromagnetic field.Electric motor 107 is permanent magnetism wherein
In some embodiments of motor, electromagnetic field thus can be revolved with the permanent magnetism field interactions that includes permanent magnet in rotor 113
Walk around son 113.In some embodiments that wherein electric motor 107 is induction motor, electromagnetic field can be included in rotor 113
In one or more coil induced currents, thus lead to magnetic resistance and rotary force on it.
In other embodiments, it is not shown, there is the case where benefit of the people of common skill in the disclosure in this field
Lower to will be understood that, rotor 113 can navigate to 111 outside of stator, so-called external rotor electric motor.Coil can thus position
On the outer surface of stator 111.
Rotor 113 can be connected to axis 115.In some embodiments, as shown in Fig. 2, rotor 113 can be generally tubular
Component, axis 115 extends at least partially into 113 inside of rotor.In some embodiments, as shown in Fig. 2, axis
115 can be connected to rotor 113 and roller 103.In other embodiments, as shown in Figure 1, motor drive shaft 115a can be connected to
Rotor 113, and drum shaft 115b can be connected to roller 103.Motor drive shaft 115a can be connected to rolling by rigid attachment device
Cylinder axis 115b, the rigid attachment device such as and are not limited to flange coupler 116.Such as it is known in the art, flange coupler 116
It may be adapted to motor drive shaft 115a and drum shaft 115b connecting into single continuous axle, which is suitable for 113 quilt of rotor
Electric motor 107 rotates and rotating cylinder 103.
In some embodiments, as shown in Figure 1, 2, winch 101 may include one or more brackets 117.Bracket 117 can
To be positioned to be connected between surface 10 and axis 115.Bracket 117 can be with, such as and be not limited to, support roller 103, axis 115
With the weight of one or more of electric motor 107.When winch 101 is in operation and promotes load, bracket 117 is also
Can be with, such as and be not limited to, tension is transferred to surface 10 from hoisting rope 105.In some embodiments, bracket 117 can be with
Roller 103 and electric motor 107 are positioned proximate to for example, minimizing the bending stress on axis 115.In some embodiments,
Bracket 117 can by, for example, and be not limited to, one or more bearing (not shown) are connected to axis 115, the one or more
Bearing is suitable for allowing axis 115 more easily to rotate wherein when winch 101 is in operation and promotes load.
As shown in Fig. 1,3,4, electric motor 107 can be connected to surface 10 by one or more motor mountings 119.Horse
It may be positioned such that and be connected between motor shell 109 and surface 10 up to mounting 119.In some embodiments, motor shell 109 can
To include the one or more supporting points 121 for being adapted to allow for motor mounting 119 to be connected to motor shell 109.In some embodiments
In, supporting point 121 can be connected to the outer surface of motor shell 109.In some embodiments, supporting point 121 can be formed as
The integral part of one or more subelements of motor shell 109.Such as and be not limited to, be formed as having in motor shell 109
In the case where having the end plate for being connected to cylindrical body, the conduct that one or more supporting points 121 can be formed as end plate is more than
The part of the extension of cylindrical body.In some embodiments, supporting point 121 can be the extension of general flat, this prolongs
Extending portion has hole formed therein to allow to rotate with motor mounting 119 and connect.In some embodiments, motor mounting 119
It may include upper connector 123, connector includes corresponding hole on this, allows pin 125 that upper connector 123 is connected to supporting point
121.In some embodiments, as shown in Fig. 1,3,4, upper connector 123 may include, such as and be not limited to, it is positioned to fair
Perhaps the assembly of supporting point 121 is attached to U-shaped bracket therein wherein and by pin 125.There is common skill in this field
People in the case where the benefit of the disclosure it will be understood that, upper connector 123 can be by being capable of providing at least one freedom of motion
Any connector of degree is connected to supporting point 121, which such as, such as and is not limited to, ball-and-socket joint or U-joint.
In some embodiments, each motor mounting 119 can be connected to surface 10 by surface mounting 127.One
In a little embodiments, surface mounting 127 can be directly coupled to surface 10.
In some embodiments, motor mounting 119 may be adapted to selectively change length with, such as and be not limited to,
Increase or decrease the distance between supporting point 121 corresponding with its of surface mounting 127.In some embodiments, specifically such as Fig. 4
Shown, motor mounting 119 may include adjusting component 129.There is benefit of the people of common skill in the disclosure in this field
In the case of it will be understood that, can change the length of motor mounting 119 any mechanism may be used as adjust component 129.Such as and
It is not limited to, adjusting component 129 may include hydraulic cylinder, screw jack, linear actuators or rack-and-pinion.
In some embodiments, as shown in figure 4, adjusting component 129 can be screw jack.As used herein, spiral shell
Rotation jack can also be sleeve nut or other devices for adjustment length.As shown in figure 4, adjusting component 129 can wrap
Include threaded rod 131a, lower threaded rod 131b and main body nut 133.Upper threaded rod 131a and lower threaded rod 131b can be with opposite
With the right hand or the acquiredhelpless feeling screw thread of left hand, and main body nut 133 may include corresponding screw thread to engage upper threaded rod
The screw thread of 131a and lower threaded rod 131b.In this embodiment, the rotation of main body nut 133 in one direction can lead to spiral shell
Rasp bar 131a, 131b are moved closer together to together in main body nut 133, effectively shorten motor mounting 119.Main body nut
133 rotation in the opposite direction can accordingly result in threaded rod 131a, 131b and move more far away in main body nut 133
It is dynamic, effectively extend motor mounting 119.It will reason in the case where this field has benefit of the people in the disclosure of common skill
Solution, although describing two threaded rods, one in multiple bars can alternatively be rotationally coupled to main body nut
133, so that the rotation of main body nut 133 only results in remaining threaded rod and extends or bounce back from main body nut 133.In addition, at this
Field have the people of common skill in the case where the benefit of the disclosure it will be understood that, the no deflection disclosure range the case where
Under, any mechanism appropriate including being still not only restricted to above-mentioned length changing mechanism can substitute the spiral thousand described before
Jin top.
By adjusting the length of one or more motor mountings 119, the distance between surface 10 and supporting point 121 thus and
The height of electric motor 107 can be thus conditioned.Electric motor 107 can permit to the adjusting of the height of electric motor 107
It is aligned with axis 115, this is highly defined as the distance between electric motor 107 and surface 10.In some embodiments, such as Fig. 1-
Shown in 3, plurality of motor mounting 119 is used to support electric motor 107, and the selectivity of the length of each motor mounting 119 is only
Vertical adjusting can permit electric motor 107 and change height and angle relative to surface 10, for example, so that electric motor 107 and axis
115 alignments.
For example, in some embodiments, as shown in Figure 1,5, axis 115 is by passing through the rigid of such as flange coupler 116
Property connector connection motor drive shaft 115a and drum shaft 115b composition, horse can permit to the adjusting of the positioning of electric motor 107
Up to the alignment of axis 115a and drum shaft 115b.In this embodiment, electric motor 107 can by, for example, and be not limited to, rise
Heavy-duty machine generally moves to the position of 10 top of surface.Electric motor 107 can be assembled fully, including motor shell 109, fixed
Son 111, rotor 113 and the motor drive shaft 115a for being connected to rotor 113.In some embodiments, electric motor 107 can be further
Ground includes one or more bearings 114, which is oriented, such as and be not limited to, prevent motor drive shaft
Misalignment between 115a, rotor 113 and stator 111.In some embodiments, electric motor 107 can be sealed, so that electric
The inside including the space between stator 111 and rotor 113 of dynamic motor 107 is sealed from ambient enviroment.
In some embodiments, once electric motor 107 generally moves to the position of the top of surface 10, then motor mounting
Then 119 can be connected between electric motor 107 and surface mounting 127.Motor mounting 119 then can be as earlier mentioned in length
It is adjusted on degree, so that motor drive shaft 115a is fully aligned in the preselected margin of tolerance with drum shaft 115b.
In other embodiments, once electric motor 107 generally moves to the position of the top of surface 10, then motor drive shaft
115a and drum shaft 115b can by, for example, and be not limited to, flange coupler 116 couples.Motor mounting can couple
Between electric motor 107 and surface mounting 127.Once the outside support of electric motor 107 is released, then axis can be measured
The deflection of 115 deflection, the axis 115 includes the deflection as caused by the misalignment between roller 103 and electric motor 107.One
In a little embodiments, axis deflection can by, for example, and be not limited to, dial indicator or load transducer (load cell)
It is measured.Then motor mounting 119 can be adjusted in length as earlier mentioned so that motor drive shaft 115 present it is sufficiently small by rolling
Deflection caused by misalignment between cylinder 103 and electric motor 107, thus remove the radial load on axis 115.
In some embodiments, as shown in Figure 6,7, axis 115 can be formed as the single component for being connected to roller 103.?
In some embodiments, axis 115 and/or rotor 113 may include connection feature, which is suitable for axis 115 selectively
It is connected to rotor 113.In the case where this field has benefit of the people in the disclosure of common skill, it will be understood that, connection feature can
To include any feature on axis 115, the feature is adapted to allow for that axis 115 is connected to rotor with enough rotational stiffness
113 and may include being not limited to, matching spline, keyway etc..In some embodiments, as shown in fig. 6, axis 115 may include
Splined section 135, the splined section are suitable for engaging with the corresponding internal spline on the inner surface for being formed in rotor 113.Some
In embodiment, splined section 135 can form taper inward towards the end of axis 115.Axis 115 and rotor 113 can thus pass through
Rotor 113 slides on the end of axis 115 to couple.
In this embodiment, as shown in fig. 6, axis 115 can remain coupled to 103 He of roller, in some embodiments, connection
It is connected to bracket 117.Electric motor 107 including rotor 113, stator 111 and motor shell 109 can generally move to surface 10
The position of top.As electric motor 107 is mobile in place, axis 115 be can be inserted in electric motor 107, so that splined section 135
It is engaged with the internal spline of rotor 113.Once being completely inserted into, in some embodiments, pressing plate (not shown) can be mounted to
Axis 115 is connected to rotor 113.Motor mounting can be connected between electric motor 107 and surface mounting 127.Once electronic
The outside support of motor 107 is released, then can measure the deflection of axis 115, and the deflection of the axis 115 includes by axis 115 and electronic
Deflection caused by misalignment between motor 107.In some embodiments, axis deflection can by, for example, and be not limited to, carve
Dial indicator is measured.Then motor mounting 119 can be adjusted in length as earlier mentioned, so that foot is presented in motor drive shaft 115
It is deflected caused by enough small misalignments as between roller 103 and electric motor 107, thus removes the radial load on axis 115
Lotus.In some this embodiments, by removing the axial load on axis 115, can cancel axis 115 and electric motor 107 it
Between bearing.In some embodiments, one or more lip seal member (not shown) may include on axis 115 so as to before such as
The inside of electric motor 107 is sealed from ambient enviroment with stating.
In some embodiments, as shown in fig. 7, rotor 113 can be formed as a part of axis 115.In some embodiments
In, the component of generally tubular that rotor 113 can be separation, being positioned around axis 115.In other embodiments, axis 115
End itself can form the rotor for electric motor 107.For example, in the embodiment that electric motor 107 is permanent magnet motor,
Multiple permanent magnets can be attached directly to axis 115.
In this embodiment, as shown in fig. 7, axis 115 and rotor 113 can remain coupled to 103 He of roller, in some realities
It applies in example, is connected to bracket 117.Electric motor 107 including stator 111 and motor shell 109 can generally move to surface
The position of 10 tops.As electric motor 107 is mobile, axis 115 and rotor 113 be can be inserted in electric motor 107 in place, so that
Rotor 113 is properly positioned in stator 111, to allow the normal operating of electric motor 107.Motor mounting 119 can couple
Between electric motor 107 and surface mounting 127.Once the outside support of electric motor 107 is released, then axis can be measured
The deflection of 115 deflection, the axis 115 includes the deflection as caused by the misalignment between rotor 113 and stator 111.In some realities
Apply in example, axis deflection can by, for example, and be not limited to, dial indicator be measured.Motor mounting 119 then can be as
Adjusted in length aforementionedly so that motor drive shaft 115 present it is sufficiently small by not right between roller 103 and electric motor 107
Deflection caused by quasi-, thus remove the radial load on axis 115.In some embodiments, motor mounting 119 can be as aforementioned
Ground is adjusted in length, so that rotor 113 is properly positioned in stator 111.In some this embodiments, pass through removal
Axial load on axis 115 can cancel the bearing between axis 115 and electric motor 107.In some embodiments, one or
Multiple lip seal member (not shown) may include on axis 115 to make the inside of electric motor 107 from ring around as earlier mentioned
Border sealing.
In some embodiments of the invention, the weight of electric motor 107 can be supported by axis 115.It is electronic in order to prevent
Motor 107 is rotated as caused by torque or torque, and the torque or torque are caused by the operation of electric motor 107, electric motor
107 can by, for example, and be not limited to, chain or cable are connected to surface 10.
In some embodiments, motor mounting 119 can resist the torque as caused by the operation of electric motor 107 or power
Square.Such as it is known in the art, in the course of normal operation of electric motor 107, the rotating member of winch 101 by electric motor
Any change of angular momentum caused by 107 can lead to equal and opposite reaction on stator 111 and motor shell 109
Angular momentum changes or the moment of reaction, and wherein the rotating member is, for example, axis 115, roller 103 and rotor 113.Motor mounting 119
It thus can be positioned so that through axial tension or compressive load and resist the rotation of motor shell 109.In some embodiments,
Motor mounting 119, which can be positioned so that, to be connected on the diameter phase antipoints of motor shell 109, as shown in Figure 2.In some embodiments
In, surface mounting 127 may be oriented such that when being installed, and motor mounting 119 is relative to the arm of force (from the middle line of axis 115
Extend to supporting point 121) it tangentially orients so as to for example, being minimized on motor mounting 119 for the given moment of reaction
Axial force.Thus, in some embodiments, motor mounting 119 can be in each of the horizontal diameter line at the center by axis 115
Motor shell 109 is connected on end.
In some embodiments, each of one or more motor mountings 119 can further include damping
Component 137.Such as it is known in the art, damper assembly 137 can be used for allowing motor base in response to axial load on it
The a selected amount of variation of the length of frame 119.In some embodiments, damper assembly 137 may include being suitable in response at it
On axial load and any mechanism for allowing the length of motor mounting 119 to change, and may include, such as and do not limit
It is formed on, one or more of spring, buffer, elastic backing, damper etc..In some embodiments, damper assembly 137 can
To include one or more damping elements being located between bearing plate.As shown in Figs 1-4, on damper assembly 137 may include
Damping element 139a.Upper damping element 139a can be positioned between surface mounting 127 and upper bearing plate 141a.Upper bearing plate
141a can be included as a part of motor mounting 119, and be positioned in the lower end of motor mounting 119.Some
In embodiment, upper bearing plate 141a may include the rest part that motor mounting 119 is for example connected to by bearing joint 145
Bearing block 143.
In some embodiments, upper damping element 139a may be oriented such that the movement of motor mounting 119 by upper resistance
Buddhist nun's element 139a damping.Upper damping element 139a can be made of following material, which is selected to have enough compressions
Elasticity allows the need of electric motor 107 to effectively inhibit anticipated load on it in the operating process of winch 101
The freedom of motion wanted.
In some embodiments, upper bearing plate 141a can be slidably attached to surface mounting 127 with allow, for example, on
Relative motion between support plate 141a and surface mounting 127 in the axial direction, but prevent motor mounting 119 from surface seat
Frame 127 separates.
In some embodiments, damper assembly 137 can further include lower damping element 139b.Lower damping element
139b can be positioned between surface mounting 127 and lower support plate 141b.Lower support plate 141b can by, for example, and it is unlimited
In one or more threaded fasteners 147 are connected to upper bearing plate 141a.Threaded fastener 147 may be adapted to be connected in branch
Between board 141a and lower support plate 141b.In some embodiments, threaded fastener 147 may be adapted in upper bearing plate 141a
Compressive load is provided between lower support plate 141b.The compressive load may be used to damping element 139a and lower damping element
139b generates prestressing force, this can be with, such as and be not limited to, allow damped motion in the upward and downward directions.?
In some embodiments, threaded fastener 147 can be passed through one or more corresponding apertures in surface mounting 127.One
In a little embodiments, threaded fastener 147 can be light at the position in the hole that anticipated movement is passed through in surface mounting 127
Sliding.
In some embodiments, pass through fixed or relaxation threaded fastener 147, upper damping element 139a and lower damping element
The precharge of 139b can be adjusted, such as and be not limited to, allow to adjust the freedom of motion of electric motor 107 and damping
Section.Upper damping element 139a and lower damping element 139b can be made of following material, which is selected to have enough
The elasticity of compression allows electric motor 107 to effectively inhibit anticipated load on it in the operating process of winch 101
Needs freedom of motion.In addition, upper damping element 139a and lower damping element 139b can be made of following material, the material
Material is selected to need range with the elasticity of compression adjusted in response to precharge.
Although described as single damping element, but there is benefit of the people of common skill in the disclosure in this field
In the case of it will be understood that, in some embodiments, the performance that upper damping element 139a and lower damping element 139b can according to need
It is alternatively one or more elements of one or more damping elements or different characteristics.For example, there is common skill in this field
Can people in the case where the benefit of the disclosure it will be understood that, without departing from the present invention, upper damping element 139a
Can be by with one or more of lower damping element 139b, such as and be not limited to, one or more springs, subtract buffer
Shake device, rubber pad or combinations thereof substitution.
In some embodiments, upper damping element 139a and lower damping element 139b can be in no removal motor mounting
It is replaced in the case where 119.For example, in some embodiments, threaded fastener 147 can be released, allow lower support plate
141b movement is sufficiently apart from surface mounting 127, to allow lower damping element 139b to be removed or replacement.It is wrapped in motor mounting 119
It includes in some embodiments for adjusting component 129, adjusting component 129 can be used for contracting while threaded fastener 147 is relaxed
The length of short motor mounting 119 allows upper bearing plate 141a movement to be sufficiently apart from surface mounting 127 to allow upper damping element
139a is removed or replacement.
Damper assembly 137 can permit the relative motion between electric motor 107 and surface 10.In some embodiments,
Relative motion can allow electric motor 107 mobile in response to any misalignment between electric motor 107 and axis 115.Separately
Outside, in the embodiment including bracket 117 (see Fig. 1), relative motion can be with, such as and be not limited to, in response to electric motor
Any misalignment between 107 and bracket 117 or any tolerance clearance with any bearing, and allow electric motor 107 mobile.
In addition, relative motion can be in response to encountering in the operating process of electric motor 107 by speed or load or turning prominent
Become caused any " concussion spike " and allows electric motor 107 mobile.
Such as it is known in the art, damper assembly 137 can be modeled as spring damping in the case where benefit in the disclosure
Component.The spring constant k and damped coefficient B of damper assembly 137 might be chosen such that electric motor 107 can be relative to table
The movement of face 10 or " floating ", to compensate any misalignment between axis 115 and electric motor 107.In some embodiments, k and B
Electric motor 107 be might be chosen such that have most about the expection misalignment tolerance between electric motor 107 and axis 115
Slight drag and move.For example, in the embodiment for utilizing upper damping element 139a and lower damping element 139b as described above, it can
To adjust the change of precharge on it, damping response (i.e. its k and B of upper damping element 139a and lower damping element 139b
Value), the resonance frequency of electric motor 107.
In some embodiments, k and B can be selected about the quality of electric motor 107.In some embodiments, k and
B can be selected about the misalignment measured between electric motor 107 and roller 103, axis 115 or bracket 117.In some realities
It applies in example, k and B might be chosen such that the spring mass-damping system generated by damper assembly 137 and electric motor 107
Resonance frequency do not correspond to the expection revolving speed of roller 103.By the resonance frequency for selecting not corresponding to the expection revolving speed of roller 103
Rate, resonance can be minimized.In some embodiments, resonance frequency can be selected to the expection revolving speed less than roller 103.
By the resonance frequency for selecting to be less than the expected revolving speed of roller 103, any single order that higher order resonance can be used for balancing drum is humorous
Vibration.In some embodiments, resonance frequency can be selected to 1/2 of the expection revolving speed less than roller 103.In some embodiments
In, resonance frequency can be selected to 1/3 of the expection revolving speed less than roller 103.
In some embodiments of the invention, can monitor electric motor 107 or motor mounting 109 deflection, vibration or
One or more of load.In some embodiments, one or more load transducers can be positioned on winch 101.Example
Such as, load transducer can be placed at one or more surface mountings 127 and be oriented to measure associated motor base
Weight and load on frame 109 and the vibration in monitoring electric motor or feedback are abnormal.In addition, load transducer data can be with
It is used to measure the torsional load of electric motor 107.In some cases, the slight vibration of the stator 111 of electric motor 107 can
To lead to the undesirable interaction between the electric field as caused by stator 111 and rotor 113, including, such as it is known in the art,
Such as and it is not limited to " pause and turn ".By monitoring the vibration, the damping characteristic of motor mounting 109 can be altered to that this is avoided to ask
Topic.
In some embodiments of the invention, any motor base for being connected between electric motor 107 and surface 10
Frame 109 may be adapted to the weight for being not subject to electric motor 107.In some embodiments, electric motor 107 can be by for example, axis
115 supports, and motor mounting 109 may be adapted to the rotation for preventing electric motor 107 in operation and provide to electricity
The inhibition of the anti-torque of dynamic motor 107.In some embodiments, electric motor 107 can be by, such as and be not limited to,
Chain or cable wire support.
Although being described as the part of winch 101 in the text, have the people of common skill in this public affairs in this field
It will be understood that, as described herein, the electric motor 107 on surface 10 is connected to by motor mounting 119 in the case where the benefit opened
Can be used for any other load or part of driving equipment, which includes, such as and be not limited to, slush pump, crane,
Mine hoist or in which biggish load moment or torque change any other application being expected.
Although there is the people of common skill in this field in addition, being described as including single motor motor 107 before
It will be understood that, two or more electric motors can be with one or more motor bases as the aforementioned in the case where the benefit of the disclosure
Frame 119 is used together and is connected to axis 115.
In some embodiments of the invention, as shown in figure 8, the motor shell 109 and stator 111 of electric motor 107 can
To be supported by bracket 117.In some this embodiments, motor shell 109 can be directly coupled to neighbouring bracket 117.
In some embodiments, bracket 117 can in addition provide torsion reaction force with prevent motor shell 109 and stator 111 with
Axis 115 is rotated and is rotated.In some embodiments, appointing between motor shell 109 or stator 111 and rotor 113 or axis 115
What bearing can be excluded fully.In some embodiments, the spring bearing 118 between axis 115 and bracket 117 thus can be with
The weight of support shaft 115 and roller 103.In some embodiments, bracket 117 may include that the positioning made of wherein cutting is recessed
Slot 120, to allow the corresponding extension of motor shell 109 to be connected to bracket 117.In some embodiments, motor shell 109
Bracket 117 can be installed to stator 111 and surrounds axis 115, as described in above herein about Fig. 6 and 7.Although herein
It is described as being connected to roller 103, but will reason in the case where this field has benefit of the people of common skill in the disclosure
Solution, electric motor 107 as described herein can be used together with any other equipment driven by axis 115.Such as and
It is not limited to, electric motor 107 can be used for driving top drive, winch, crane, turntable or elevator.
Foreground outlines the feature of several embodiments, so that those of ordinary skill in the art can be best understood from this hair
Bright aspect.This feature can be substituted by any of many equivalent alternatives, only disclose the alternatives herein
In it is some.It will be appreciated by one of ordinary skill in the art that they are used for based on can easily using the present invention
It designs or changes other method and structures to implement identical purpose and/or realize the same advantage of embodiments described herein.
Those of ordinary skill in the art should it will also be appreciated that construction equivalent in this way do not depart from the spirit and scope of the present invention and he
Can carry out various changes, replacement and modification herein in the case where without departing from the spirit and scope of the invention.
Claims (27)
1. one kind directly drives crane comprising:
Electric motor,
First motor mounting, the first motor mounting are suitable for electric motor being connected to surface, the first motor mounting packet
The damper assembly for the damped motion being adapted to allow between electric motor and the surface is included, the first motor mounting includes being suitable for
The adjusting component for making the first motor mounting extend or bounce back;
The axis of electric motor is extended through, wherein not having bearing between electric motor and axis, the axis is suitable for by electric motor
Rotation;With
It is connected to the loading element of axis, the loading element is suitable for being rotated as axis is rotated by electric motor by axis.
2. according to claim 1 directly drive crane, wherein electric motor includes:
Shell, the shell include the supporting point suitable for electric motor to be connected to the first motor mounting;
Stator, the stator are connected to shell;With
Rotor, the rotor are connected to axis.
3. according to claim 2 directly drive crane, wherein the axis further comprises loading element axis and motor drive shaft,
The loading element axis is connected to roller, and the motor drive shaft is connected to rotor, the loading element axis and the fixed connection of motor drive shaft
Device connection.
4. according to claim 3 directly drive crane, wherein the connector of the fixation includes flange coupler.
5. according to claim 2 directly drive crane, wherein the axis includes external spline end and described turn
Attached bag includes corresponding internal splines, and the axis is adapted for insertion into rotor or removes from rotor.
6. according to claim 2 directly drive crane, wherein the axis and rotor are for good and all coupled, the axis and
Rotor is adapted for insertion into the stator of electric motor or removes from the stator of electric motor.
7. according to claim 6 directly drive crane, wherein the rotor is formed as a part of axis.
8. according to claim 2 directly drive crane, wherein the supporting point is suitable for coupling by pin type connector
To the first motor mounting.
9. according to claim 2 directly drive crane, further comprise:
Second motor mounting, the second motor mounting are suitable for electric motor being connected to the surface, second motor base
Frame includes the second damper assembly of the damped motion being adapted to allow between electric motor and the surface, the second motor mounting
Second including being suitable for that the first motor mounting is made to extend or bounce back adjusts component, and
Wherein, the shell includes the second supporting point, and the second motor mounting is connected in second supporting point and the table
Between face, the supporting point and second supporting point that the electric motor is connected to the first motor mounting are relative to axis edge
Diameter is reversed in position.
10. according to claim 1 directly drive crane, wherein the damper assembly includes the first damping element, institute
It states the first damping element and is located in and be connected between the surface mounting on the surface and the first support plate, so that the first damping element
It is compressed between the first support plate.
11. according to claim 10 directly drive crane, wherein the damper assembly further comprises being located in table
The second damping element between face mounting and the second support plate, second support plate are located in supporting with first for surface mounting
The opposite side of plate, second support plate are connected to the first support plate and make pressure between the first support plate and the second support plate
Force the first damping element of contracting and the second damping element.
12. according to claim 11 directly drive crane, wherein first support plate and second support plate
Coupled by one or more screw members, the screw member is adapted to allow for adjusting the compression of damping element.
13. according to claim 12 directly drive crane, wherein first damping element and second damping
Element has material property corresponding with spring constant and damped coefficient, the spring constant, damped coefficient and electric motor limit
Surely with spring mass-damping system of resonance frequency;And the spring constant and damped coefficient are selected such that bullet
Spring-mass-damper system resonance frequency does not correspond to the expection revolving speed of loading element.
14. according to claim 13 directly drive crane, wherein the resonance frequency of the spring mass-damping system
Rate is selected to the expection revolving speed less than loading element.
15. according to claim 14 directly drive crane, wherein the resonance frequency of the spring mass-damping system
Rate is selected to 1/3 of the expection revolving speed less than loading element.
16. according to claim 13 directly drive crane, wherein the adjusting of the screw member allows resonance frequency
It is conditioned.
17. according to claim 1 directly drive crane, wherein the adjusting component includes screw jack assemblies,
The screw jack assemblies include at least one threaded rod and formed respective threaded main body nut, the threaded rod be suitable for
Formed respective threaded nut by rotation and from formed respective threaded nut extend or retraction.
18. according to claim 17 directly drive crane, wherein the screw jack assemblies include having dextrorotation
First threaded rod of screw thread and the second threaded rod with left hand thread, and the main body nut include internal screw thread have with
The first part of the right-handed thread of first threaded rod engagement and internal screw thread with the left hand thread engaged with the second threaded rod
Second part, so that the rotation of main body nut leads to the first threaded rod and the second threaded rod according to the direction of rotation of main body nut
It moves toward each other or is moved away from each other.
19. according to claim 1 directly drive crane, further comprise: being connected to the load of the first motor mounting
Sensor, the load transducer are suitable for measuring the load of one or more of the first motor mounting, electric motor or axis, pressure
One of contracting, vibration or deflection are a variety of.
20. according to claim 19 directly drive crane, wherein the load transducer is suitable for measurement electric motor
On torsional load.
21. according to claim 1 directly drive crane, wherein the crane includes winch.
22. according to claim 1 directly drive crane, wherein the electric motor passes through in cable or chain extremely
Few one is connected to the surface.
23. a kind of for adjusting the method for directly driving the alignment of component of crane, comprising:
Offer directly drives crane, and the crane that directly drives includes:
Electric motor,
First motor mounting, the first motor mounting are suitable for electric motor being connected to surface, the first motor mounting packet
The damper assembly for the damped motion being adapted to allow between electric motor and the surface is included, the first motor mounting includes being suitable for
The adjusting component for making the first motor mounting extend or bounce back;
The axis of electric motor is extended through, wherein not having bearing between electric motor and axis, the axis is suitable for by electric motor
Rotation;With
It is connected to the loading element of axis, the loading element is suitable for being rotated as axis is rotated by electric motor by axis;With
One or more of adjust damper assembly in response to one or more of parameter and adjust component, the parameter is
Dislocation between radial displacement, electric motor and the axis of axis, loading element or rotor, the vibration observed turn and bearing tolerances.
24. a kind of assemble the method for directly driving crane, comprising:
Roller is provided, the roller includes axis, and the roller is connected to surface;
The stator for corresponding to electric motor is provided, the stator is connected to the shell of electric motor;
The rotor for corresponding to electric motor is provided;
Rotor is connected to axis;
Rotor fixed position is cooperated at stator;
Shell is connected to the surface by the first motor mounting, the first motor mounting includes being adapted to allow for electric motor
The damper assembly of damped motion between shell and the surface, the first motor mounting include being suitable for making the first motor mounting
The adjusting component for extending or bouncing back;With
The adjusting component is adjusted so that stator is aligned with axis.
25. according to the method for claim 24, wherein there is no bearing between electric motor and axis.
26. according to the method for claim 24, wherein the rotor is joined after rotor is oriented to cooperate with stator
It is connected to axis.
27. according to the method for claim 24, wherein the rotor is joined before rotor is oriented to cooperate with stator
It is connected to axis.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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US201462032880P | 2014-08-04 | 2014-08-04 | |
US62/032,880 | 2014-08-04 | ||
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US62/099,258 | 2015-01-02 | ||
US14/815,622 | 2015-07-31 | ||
US14/815,622 US10150659B2 (en) | 2014-08-04 | 2015-07-31 | Direct drive drawworks with bearingless motor |
Publications (2)
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CN105366575A CN105366575A (en) | 2016-03-02 |
CN105366575B true CN105366575B (en) | 2019-07-26 |
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CN201510470717.7A Expired - Fee Related CN105366575B (en) | 2014-08-04 | 2015-08-04 | Winch is directly driven with bearingless motors |
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US (1) | US10150659B2 (en) |
CN (1) | CN105366575B (en) |
CA (1) | CA2899487C (en) |
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US10150659B2 (en) * | 2014-08-04 | 2018-12-11 | Nabors Drilling Technologies Usa, Inc. | Direct drive drawworks with bearingless motor |
-
2015
- 2015-07-31 US US14/815,622 patent/US10150659B2/en active Active
- 2015-07-31 CA CA2899487A patent/CA2899487C/en active Active
- 2015-08-04 CN CN201510470717.7A patent/CN105366575B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN200943027Y (en) * | 2006-05-18 | 2007-09-05 | 杭州富沃德电子电器有限公司 | Small permanent magnetic synchronous gearless traction machine |
CN201074171Y (en) * | 2007-06-26 | 2008-06-18 | 盘云辉 | Winding machine |
CN102667009A (en) * | 2009-12-21 | 2012-09-12 | 凯文·R·威廉姆斯 | Permanent magnet direct drive drawworks |
Also Published As
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US20160031686A1 (en) | 2016-02-04 |
CA2899487A1 (en) | 2016-02-04 |
CA2899487C (en) | 2020-03-24 |
CN105366575A (en) | 2016-03-02 |
US10150659B2 (en) | 2018-12-11 |
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